One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

The massive machine creates cracking displays of indoor lightning.

"Mock all and sundry things, but leave the saints alone."

Beautiful steampunk ghosts of early Massachusetts.

The site of Paul Revere's historic two lantern warning.

Radical Bookstore and Community Space.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

This underground museum highlights the history of Mexico City's subway system.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Once frequented by heavyweights of the Russian arts scene, this café is stuck in the 1800s.

This Tang Dynasty behemoth is the biggest Buddha in the world.

A KFC honors an eighth-century Chinese poet with holograms and verse.

An "evil painter" included pointed symbols in this artwork to poke fun at members of the Danish Parliament.

This Danish art forest places loud works of contemporary art among the pensive silence of nature.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.